Cited by 71Computational Drug Discovery MethodsStatistical Methods and Bayesian InferenceStatistical Methods in Clinical Trials

Multilevel models Improve precision and Speed of IC 50 Estimates

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Vis, Daniel J, Bombardelli, Lorenzo, Lightfoot, Howard, Iorio, Francesco, Garnett, Mathew J, Wessels, Lodewyk FA·2016·Pharmacogenomics

Abstract

AIM: Experimental variation in dose-response data of drugs tested on cell lines result in inaccuracies in the estimate of a key drug sensitivity characteristic: the IC50. We aim to improve the precision of the half-limiting dose (IC50) estimates by simultaneously employing all dose-responses across all cell lines and drugs, rather than using a single drug-cell line response. MATERIALS & METHODS: We propose a multilevel mixed effects model that takes advantage of all available dose-response data. RESULTS: The new estimates are highly concordant with the currently used Bayesian model when the data are well behaved. Otherwise, the multilevel model is clearly superior. CONCLUSION: The multilevel model yields a significant reduction of extreme IC50 estimates, an increase in precision and it runs orders of magnitude faster.

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  • Fitting models to all dose-response series leads to improved robustness for more accurate IC50 and AUC estimates.

    “Fitting models to all dose–response series leads to improved robustness for more accurate IC50 and AUC estimates.”

    From Exploiting convergent phenotypes to derive a pan-cancer cisplatin response gene expression signature (2023) · cites this paper as [38]

    The Introduction and Discussion say that fitting dose-response curves together borrows information across the screen, reduces extreme estimates, and improves the accuracy of IC50 estimates. The Results section (“Concordance and precision”; page not available) reports that AUC estimates correlate well with those from a Bayesian model, but does not establish that this approach makes AUC estimates more accurate. (LLM, conf=0.84)

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Authors
Vis, D. J., Bombardelli, L., Lightfoot, H., Iorio, F., Garnett, M. J., & Wessels, L. F.
Affiliations
  • Center for Personalized Cancer Treatment (CPCT), Utrecht/Amsterdam, The Netherlands
  • The Netherlands Cancer Institute (NL)
  • Wellcome Sanger Institute (GB)
  • European Bioinformatics Institute (GB)
Venue
Pharmacogenomics
Published
2016-05
Volume
17
Issue
7
Pages
691-700
ISSN
  • 1462-2416 (ISSN-L)
  • 1744-8042
OpenAlex
W2395185160
Cited by
71
References
8
Citations by year
2026: 5 · 2025: 8 · 2024: 8 · 2023: 7 · 2022: 11 · 2021: 7 · 2020: 10 · 2019: 4 · 2018: 5 · 2017: 4 · 2016: 2
FWCI
4.60
Type
journal article
Language
en
Open access
Locations
  • Pharmacogenomics (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Topics
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods and Bayesian Inference
  • Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods in Clinical Trials
Keywords
IC50 estimation, dose-response data, multilevel mixed-effects models, drug sensitivity, cell lines, computational speed, Bayesian model selection, anticancer drug screening
MeSH terms
Pharmacogenomic Testing, Algorithms, Bayes Theorem, Dose-Response Relationship, Drug, Drug Screening Assays, Antitumor, Humans, Models, Biological, Nonlinear Dynamics, Drug Resistance, Neoplasm, Inhibitory Concentration 50, Cell Line, Tumor, Precision Medicine

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